As recently as 2021, almost half of all U.S. mansions — homes with at least 5,000 square feet of livable space — cost $1 million or less. But today, only a handful of cities still offer top-end homes ...

When it comes to luxury real estate, America’s wealthiest citizens spare no expense. From Gilded Age palaces to modern mega-mansions, these estates feature amenities most of us can only dream of — ...